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dm: core: fix dev_read_alias_highest_id() without libfdt

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If CONFIG_DM_DEV_READ_INLINE is set, dev_read_alias_highest_id() calls
libfdt_get_highest_id(). But this function is only available if we have
libfdt compiled in. If its not available return -1, which matches the
return code for no alias found.

This fixes the following error on omapl138_lcdk:
arm-linux-gnueabi-ld.bfd: drivers/built-in.o: in function `dev_read_alias_highest_id':
/home/mw/repo/u-boot/include/dm/read.h:986: undefined reference to `fdtdec_get_alias_highest_id'

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Michael Walle 2020-06-02 01:47:08 +02:00 committed by Simon Glass
parent c03b7612ea
commit 0a6b75f7d8
1 changed files with 2 additions and 0 deletions
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2
include/dm/read.h
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@ -983,6 +983,8 @@ static inline u64 dev_translate_dma_address(const struct udevice *dev,
static inline int dev_read_alias_highest_id(const char *stem)
{
if (!CONFIG_IS_ENABLED(OF_LIBFDT))
return -1;
return fdtdec_get_alias_highest_id(gd->fdt_blob, stem);
}